alter patient-reported outcomes. LEVEL OF EVIDENCE Level III-therapeutic.STUDY DESIGN Cadaveric study. SUMMARY OF BACKGROUND DATA Pedicle screw fixation is an established means of stabilizing the thoracic and lumbar spine. However, there are associated complications including pedicle breach which can result in neurological injury, durotomy, vascular injury, and suboptimal fixation. OBJECTIVE The aim of this study is to determine whether use of a navigated robotic platform results in fewer pedicle breaches and the underlying reasons for any difference in pedicle breach rates. MATERIALS AND METHODS Ten board-certified neuro- and orthopedic spine surgeons inserted 80 percutaneous lumbar screws in 10 unembalmed human cadavers. Forty screws were inserted using conventional fluoroscopic guidance and 40 were inserted using a navigated robotic platform. None of the participating surgeons had any prior experience with navigated robotic spine surgery. At the end of the study each screw was assessed with a computed tomography scan, plain radiographs and visual inspection to determine the presence or absence of pedicle breaches. RESULTS Forty percent (40%) of screws inserted using conventional fluoroscopic guidance breached compared with 2.5% of screws inserted with robot assistance (P=0.00005). Lateral breaches accounted for 88.2% (15/17) of all breaches. https://www.selleckchem.com/products/bpv-hopic.html Detailed analysis revealed that the starting point of screws that breached laterally were significantly more lateral than that of the contralateral accurate screw (P=0.016). Pedicle screw diameter, length, and angulation in the transverse plane did not differ significantly between accurate screws and those that breached (P&gt;0.05). CONCLUSIONS The use of a navigated robotic platform in the present study resulted in significantly fewer pedicle breaches. This was achieved through correct starting point selection with subsequent safe pedicle screw insertion.STUDY DESIGN This was a retrospective study of the clinical and radiologic outcomes of multilevel anterior cervical discectomy and fusion (ACDF) surgery for multilevel cervical spondylosis patients. OBJECTIVE In this retrospective study, we intended to determine the relationship of neck circumference, neck length, and body mass index (BMI) with the outcomes of multilevel ACDF surgeries for patients with multilevel cervical spondylosis. SUMMARY OF BACKGROUND DATA Obesity has become a worldwide epidemic problem since the beginning of the 21st century. However, no study has focused on how local or whole-body obesity indexes (neck circumference, length of neck, and BMI) are related to the outcome of anterior cervical surgery. METHODS A total of 156 consecutive patients with multilevel cervical spondylosis who underwent anterior cervical surgery in our department from 2010 to 2016 were enrolled in our study. Preoperative parameters of patients such as the neck circumference, length of neck, height and weight were and shorter neck length may have a longer operation duration, more blood loss, and more postoperative complications. The authors recommended that the presence of obesity and neck circumference and length should be carefully considered in the perioperative risk assessment for a multilevel ACDF surgery.The wide adoption of electronic medical records and subsequent availability of large amounts of clinical data provide a rich resource for researchers. However, the secondary use of clinical data for research purposes is not without limitations. In accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, we conducted a systematic review to identify current issues related to secondary use of electronic medical record data via MEDLINE and CINAHL databases. All articles published until June 2018 were included. Sixty articles remained after title and abstract review, and four domains of potential limitations were identified (1) data quality issues, present in 91.7% of the articles reviewed; (2) data preprocessing challenges (53.3%); (3) privacy concerns (18.3%); and (4) potential for limited generalizability (21.7%). Researchers must be aware of the limitations inherent to the use of electronic medical record data for research and consider the potential effects of these limitations throughout the entire study process, from initial conceptualization to the identification of adequate sources that can provide data appropriate for answering the research questions, analysis, and reporting study results. Consideration should also be given to using existing data quality assessment frameworks to facilitate use of standardized data quality definitions and further efforts of standard data quality reporting in publications.The link between effective basic life support and survival following cardiac arrest is well known. Nurses are often first responders at in-hospital cardiac arrests and receive annual basic life support training to ensure they have the adequate skills, and student nurses are taught this in preparation for their clinical practice. However, it is clear that some nurses still lack confidence and skills to perform basic life support in an emergency situation. This innovative study included 209 participants, used a mixed-methods approach, and examined three environments to compare confidence and skills in basic life support training. The environments were nonimmersive (basic skills room), immersive (immersive room with video technology), and the Octave (mixed reality facility). The skills were measured using a Laerdal training manikin (QCPR manikin), with data recorded on a wireless Laerdal Simpad, and confidence levels before and after training were measured using a questionnaire. The nonimmersive and the immersive rooms were familiar environments, and the students felt more comfortable, relaxed, and, thus, more confident. The Octave offered the higher level of simulation utilizing virtual reality technology. Students felt less comfortable and less confident in the Octave; we assert that this was because the environment was unfamiliar. The study identified that placing students in an unfamiliar environment influences the confidence and skills associated with basic life support; this could be used as a way of preparing student nurses with the necessary emotional resilience to cope in stressful situations.